Wi-Fi antenna components and wireless network equipment and customer premise equipment

Abstract

The present application discloses a Wi‑Fi antenna assembly, a wireless network device, and a client front-end device. The Wi‑Fi antenna assembly includes a horizontally polarized radiator and at least two vertically polarized radiators; the horizontally polarized radiator is located above the at least two vertically polarized radiators, and the radiating surface of the horizontally polarized radiator is arranged perpendicular to the radiating surface of the vertically polarized radiator; the horizontally polarized radiator is used to radiate Wi‑Fi first frequency band signals; the at least two vertically polarized radiators include a first vertically polarized radiator for radiating Wi‑Fi first frequency band signals and Wi‑Fi second frequency band signals, and a second vertically polarized radiator for radiating Wi‑Fi second frequency band signals. The Wi‑Fi antenna assembly of the present application provides a layout solution for miniaturization, high isolation, and high gain of 5G antennas required for Wi‑Fi high-speed transmission MIMO. While improving the antenna gain, it also improves the antenna isolation, which well meets the requirements of multi-antenna MIMO systems to improve both antenna gain and antenna isolation under the trend of product miniaturization.

Description

Technical Field

[0001] The present application relates to antenna technology, and in particular to a Wi-Fi antenna assembly, wireless network equipment, and customer premise equipment. Background Art

[0002] With the development of 5G and internet technologies, Wi-Fi is becoming increasingly common in our daily lives. Wi-Fi signal coverage, strength, and speed are also gaining increasing importance. To improve Wi-Fi speeds, Wi-Fi-enabled communication devices, such as customer premises equipment (CPE) and routers, typically rely on multiple antennas to implement a Multiple-Input Multiple-Output (MIMO) antenna system, enabling high-speed transmission.

[0003] Currently, Wi-Fi signal coverage is generally expanded by increasing conducted power or antenna gain. With the trend toward miniaturization, increasing antenna gain while also improving isolation between antennas in multi-antenna MIMO systems is a challenge. Summary of the Invention

[0004] The present application provides a Wi-Fi antenna assembly, a wireless communication device, and a client front-end device, which can improve antenna gain while improving isolation between antennas.

[0005] An embodiment of the present application provides a Wi-Fi antenna assembly, comprising a horizontally polarized radiator and at least two vertically polarized radiators; the horizontally polarized radiator is located above the at least two vertically polarized radiators, and a radiating surface of the horizontally polarized radiator is arranged perpendicular to the radiating surfaces of the vertically polarized radiators;

[0006] The horizontally polarized radiator is used to radiate Wi-Fi first frequency band signals; the at least two vertically polarized radiators include a first vertically polarized radiator for radiating Wi-Fi first frequency band signals and Wi-Fi second frequency band signals, and a second vertically polarized radiator for radiating Wi-Fi second frequency band signals.

[0007] The Wi-Fi antenna assembly provided in the embodiments of the present application provides a miniaturized, highly isolated, and high-gain 5G antenna layout solution that meets the requirements of Wi-Fi high-speed transmission MIMO. While improving antenna gain, it also improves the isolation between antennas. This well meets the requirements of multi-antenna MIMO systems that require both improved antenna gain and improved isolation between antennas under the trend of product miniaturization.

[0008] An embodiment of the present application further provides a wireless network device, comprising a housing and any one of the above-mentioned Wi-Fi antenna assemblies, wherein the Wi-Fi antenna assembly is accommodated in the housing.

[0009] The present application also provides a CPE, including:

[0010] A horizontally polarized radiator having a first radiating surface for radiating Wi-Fi signals in a first frequency band;

[0011] At least two vertically polarized radiators, the at least two vertically polarized radiators being circumferentially spaced apart around the horizontally polarized radiator, each having a second radiating surface, the at least two vertically polarized radiators comprising a first vertically polarized radiator for radiating Wi-Fi first-band signals and Wi-Fi second-band signals, and a second vertically polarized radiator for radiating Wi-Fi second-band signals; and

[0012] A support member, comprising a support top wall and a plurality of support side walls, wherein the horizontally polarized radiator is disposed on the support top wall, and each of the support side walls is provided with one vertically polarized radiator;

[0013] The customer premise equipment can be set on a horizontal support surface so that the first radiating surface is arranged parallel to the horizontal support surface, and the second radiating surface is arranged perpendicular to the horizontal support surface. The horizontally polarized radiator and the first vertically polarized radiator are used to horizontally omnidirectionally radiate the Wi-Fi first frequency band signal, and the first vertically polarized radiator and the second vertically polarized radiator are used to horizontally omnidirectionally radiate the Wi-Fi second frequency band signal.

[0014] The present invention provides a wireless communication device, such as a CPE or router, equipped with a Wi-Fi antenna assembly according to the present invention, which meets the requirement for omnidirectional Wi-Fi coverage. The arrangement of the Wi-Fi antenna assembly and the polarization design of the different antennas provided in the present invention achieve an antenna layout with high isolation and miniaturization in the Wi-Fi 2.4G band and high gain in the Wi-Fi 5G band, providing a feasible solution for miniaturization of wireless communication devices such as CPE.

[0015] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purposes and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the technical solution of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present application, but do not constitute a limitation on the technical solution of the present application.

[0017] Figure 1 Schematic diagram of the structure of the Wi-Fi antenna assembly in an embodiment of the present application;

[0018] Figure 2 Schematic diagram of the composition of the horizontally polarized radiator of the Wi-Fi antenna assembly in an embodiment of the present application;

[0019] Figure 3 In the embodiment of this application Figure 2 Schematic diagram of the current direction of the horizontally polarized radiator shown;

[0020] Figure 4 In the embodiment of this application Figure 2 Schematic diagram of the 3D radiation direction of the horizontally polarized radiator shown;

[0021] Figure 5 Schematic diagram of the composition of the first vertically polarized radiator of the Wi-Fi antenna assembly in an embodiment of the present application;

[0022] Figure 6 In the embodiment of this application Figure 5 Schematic diagram of the current direction of the first Wi-Fi radiator in the first vertically polarized radiator at the 2.45G frequency point;

[0023] Figure 7 In the embodiment of this application Figure 5 A schematic diagram of the 3D radiation direction of the first Wi-Fi radiator in the first vertically polarized radiator at the 2.45G frequency point;

[0024] Figure 8 In the embodiment of this application Figure 5 Schematic diagram of the current direction of the first Wi-Fi radiator in the first vertically polarized radiator at the 5.5G frequency point;

[0025] Figure 9 In the embodiment of this application Figure 5 A schematic diagram of the 3D radiation direction of the first Wi-Fi radiator in the first vertically polarized radiator at the 5.5G frequency point;

[0026] Figure 10 Schematic diagram of the isolation curve between the horizontally polarized radiator and the first vertically polarized radiator in the embodiment of the present application;

[0027] Figure 11 Schematic diagram of the composition of the second vertically polarized radiator in the Wi-Fi antenna assembly in an embodiment of the present application;

[0028] Figure 12 In the embodiment of this application Figure 9 Schematic diagram of the current direction of the second vertically polarized radiator;

[0029] Figure 13 In the embodiment of this application Figure 9 Schematic diagram of the 3D radiation direction of the second vertically polarized radiator;

[0030] Figure 14 Schematic diagram of the isolation curve between the horizontally polarized radiator and the three second vertically polarized radiators in the embodiment of the present application;

[0031] Figure 15 Schematic diagram of the isolation curve between the horizontally polarized radiator and the four vertically polarized radiators in the embodiment of the present application;

[0032] Figure 16 Schematic diagram of the positional relationship between the Wi-Fi antenna assembly and the CPE in an embodiment of the present application. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions and advantages of this application more clear, the embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of this application can be combined with each other in any way.

[0034] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0036] It is understood that the terms "first" and "second" used in this application are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0037] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if there is transmission of electrical signals or data between the connected circuits, modules, units, etc.

[0038] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include," "comprising," "having," and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Furthermore, the term "and / or" as used in this specification includes any and all combinations of the relevant listed items.

[0039] The use of Wi-Fi is becoming more and more frequent in our daily lives, and we are also becoming more and more concerned about the coverage and strength of Wi-Fi signals. 5G Wi-Fi has a higher transmission speed than 2.4G Wi-Fi, and dual-band Wi-Fi is an inevitable trend. Dual-band Wi-Fi means that the device supports dual-band wireless signals such as 2.4GHz band signals and 5GHz band signals at the same time, and can support a complete wireless network including 802.11a / b / g / n. The advantage of dual-band Wi-Fi devices is that they have stronger and more stable Wi-Fi wireless signals, faster transmission speeds, and can make wireless devices more power-saving, meeting the future needs of high-definition and big data wireless transmission. In order to achieve high-speed transmission, multiple antennas are required to realize a MIMO antenna system. In order to improve the antenna gain while improving the isolation between antennas in a multi-antenna MIMO system, an embodiment of the present application provides a Wi-Fi antenna assembly.

[0040] Figure 1 FIG. 1 is a schematic diagram of the structure of the Wi-Fi antenna assembly in an embodiment of the present application. Figure 1 As shown, it includes: a horizontally polarized radiator 10, at least two vertically polarized radiators 11; wherein,

[0041] The horizontally polarized radiator 10 is located above the at least two vertically polarized radiators 11, and the radiating surface of the horizontally polarized radiator 10 is perpendicular to the radiating surface of the vertically polarized radiator 11;

[0042] A horizontally polarized radiator 10, configured to radiate Wi-Fi signals in a first frequency band;

[0043] The at least two vertically polarized radiators 11 include two vertically polarized radiators. In the embodiment of the present application, the two vertically polarized radiators are respectively referred to as a first vertically polarized radiator and a second vertically polarized radiator; wherein the first vertically polarized radiator is used to radiate Wi-Fi first frequency band signals and Wi-Fi second frequency band signals, and the second vertically polarized radiator is used to radiate the Wi-Fi second frequency band signals. In one embodiment, the at least two vertically polarized radiators 11 include a first vertically polarized radiator (such as Figure 1 The first vertically polarized radiator 111 in the embodiment is only an example and is not intended to limit its position), which is used to radiate Wi-Fi first frequency band signals and Wi-Fi second frequency band signals; the at least two vertically polarized radiators 11 further include at least one second vertically polarized radiator (such as Figure 1 The second vertically polarized radiator 121, the second vertically polarized radiator 122, and the second vertically polarized radiator 123 are configured to radiate Wi-Fi second frequency band signals.

[0044] In an exemplary embodiment, the Wi-Fi first frequency band signal in the embodiment of the present application may be, for example, a Wi-Fi 2.4G signal, and the Wi-Fi second frequency band signal may be, for example, a Wi-Fi 5G signal.

[0045] In an exemplary embodiment, the horizontally polarized radiator 10 may form a ring structure through multiple dipole arms to achieve horizontal omnidirectional coverage.

[0046] Take the Wi-Fi 2.4G signal as an example. Figure 2 As shown, in this embodiment, the horizontally polarized radiator 10 is disposed on a first substrate 100. It is a 2.4GHz single-band horizontally polarized omnidirectional antenna formed with four dipole arms. The unit dipole is a simple PCB symmetrical dipole antenna 104, comprising four symmetrical dipole antennas. The four symmetrical dipole antennas form an array, forming a swastika shape. The horizontally polarized radiator 10 includes four transmission lines 102 and four antenna arms 103 extending outward from a feed point 101. The four transmission lines 102 form a microstrip two-wire feed network in the shape of a cross. The transmission lines 102 are connected in parallel through the feed point 101. The four antenna arms 103 are arranged clockwise or counterclockwise at the end of each transmission line 102. In this embodiment, four antenna arms 103 are arranged counterclockwise at the end of each transmission line 101, forming a ring. Figure 2 The 2.4G single-frequency horizontally polarized omnidirectional antenna shown in the figure has a current pattern as follows: Figure 3 As shown. The ring structure formed by the four vibrator arms is as follows Figure 4 As shown, the antenna pattern energy is concentrated in the horizontal plane, achieving omnidirectional coverage in the horizontal plane.

[0047] In one exemplary embodiment, the first vertically polarized radiator 111 of the vertically polarized radiators 11 is disposed on a second substrate and is a vertically polarized dual-band antenna. It may include: a first Wi-Fi radiator for radiating Wi-Fi signals in a first frequency band, and a second Wi-Fi radiator for radiating Wi-Fi signals in a second frequency band. The first and second Wi-Fi radiators are rotationally symmetrically arranged, and both are dipole antennas to achieve horizontal omnidirectional coverage. In one embodiment, the first vertically polarized radiator may be a dipole antenna, a Yagi antenna, or other type of vertically polarized antenna.

[0048] For example, if the Wi-Fi first frequency band signal is a Wi-Fi 2.4G signal and the Wi-Fi second frequency band signal is a Wi-Fi 5G signal, Figure 5 As shown, in this embodiment, the first vertically polarized radiator is a vertically polarized dipole antenna, disposed on a second substrate 200. The first vertically polarized radiator includes a first Wi-Fi radiator 202 for radiating Wi-Fi 2.4G signals and a second Wi-Fi radiator 203 for radiating Wi-Fi 5G signals. That is, the first Wi-Fi radiator 202 can be a 2.4GHz Wi-Fi radiator, and the second Wi-Fi radiator 203 can be a 5GHz Wi-Fi radiator. Furthermore, the first Wi-Fi radiator 202 and the second Wi-Fi radiator 203 are rotationally symmetrically disposed on the second substrate 200, and both the first Wi-Fi radiator 202 and the second Wi-Fi radiator 203 are dipole antennas. Figure 5 The dipole current pattern of the first Wi-Fi radiator at the 2.45G frequency point of the 2.4G & 5G dual-band low-gain, vertically polarized dipole antenna shown in FIG. Figure 6 As shown, the radiation 3D antenna pattern of the first Wi-Fi radiator at the 2.45G frequency point is as follows Figure 7 As shown, the oscillator current direction diagram of the second Wi-Fi radiator at the 5.5G frequency point is as follows Figure 8 As shown, the radiation 3D antenna pattern of the second Wi-Fi radiator at the 5.5G frequency point is as follows Figure 9 As shown in the figure, the directional pattern of the 2.4G & 5G dual-band low-gain, vertically polarized dipole antenna itself is horizontal coverage.

[0049] Combine Figure 16 As shown, the horizontally polarized 2.4G single-band antenna is located at the top, and the 2.4&5G dual-band vertically polarized dipole antenna is placed below it. The radiation surfaces of the two are perpendicular to each other. The embodiment of the present application achieves a high isolation effect for the Wi-Fi 2.4G signal by isolating the horizontal and vertical polarizations, as shown in FIG. Figure 10As shown, the isolation between the horizontally polarized 2.4G single-band antenna and the 2.4&5G dual-band vertically polarized dipole antenna in the 2.4G frequency band (as shown in Figure 10 The S2,1) in the 2.4G and 5G bands reaches 35dB, and the isolation between the 2.4G and 5G bands reaches more than 50dB. Figure 4 、 Figure 7 and Figure 9 The directional patterns of the 2.4GHz single-band horizontally polarized omnidirectional antenna and the 2.4GHz & 5GHz dual-band vertically polarized antenna show horizontal coverage, ensuring the two-transmit-two-receive (2T2R) MIMO coverage effect of the Wi-Fi 2.4GHz band.

[0050] In one exemplary embodiment, the second vertically polarized radiators 121, 122, and 123 in the vertically polarized radiator 11 are disposed on a second substrate and are vertically polarized single-band antennas. They may include a second Wi-Fi radiator for radiating Wi-Fi signals in a second frequency band. In one embodiment, the second vertically polarized radiator may be a multi-element array, where the elements in the multi-element array are connected via phase shifters, where the phase shifters are used to control the phase of the element currents to achieve phase superposition.

[0051] Take the Wi-Fi 5G signal as an example, the second frequency band signal of Wi-Fi is Figure 11 As shown, the second vertically polarized radiator in this embodiment is a vertically polarized single-frequency 5G antenna, which is arranged on a second substrate 200. It should be noted that different second vertically polarized radiators are arranged on different second substrates, and the second vertically polarized radiator and the first vertically polarized radiator are also arranged on different second substrates. Figure 11 As shown, the second vertically polarized radiator includes a first array element 302 and a second array element 303. The first array element 302 and the second array element 303 are connected in series via a phase shifter 304. The phase shifter 304 can control the phase of the array element current. In this embodiment, high gain is achieved through phase superposition. It should be noted that the vertically polarized single-band 5G antenna in this embodiment uses a two-element array to ensure a small size. In other embodiments, multiple array elements, such as three elements, can also be used, resulting in higher gain, but increasing the antenna's footprint. In other words, the appropriate vertically polarized single-band 5G antenna implementation can be selected based on the device in which the Wi-Fi antenna assembly is used.

[0052] Combine Figure 16As shown, the horizontally polarized 2.4G single-band antenna is located at the top, and a 2.4&5G dual-band vertically polarized dipole antenna and three 5G single-band vertically polarized antennas are placed below it. The radiation surface of the antenna at the top is perpendicular to the radiation surface of each antenna below it. In the embodiment of the present application, the Wi-Fi 5GHz band uses one 2.4&5G dual-band antenna and three single-band 5G antennas to achieve four-transmit and four-receive (4T4R) MIMO coverage of the Wi-Fi 5G band. All four antennas are vertically polarized to ensure the horizontal coverage effect of the antenna assembly. Moreover, three of the single-band antennas adopt a two-element superposition design to achieve a high gain effect. The antenna gain can reach 5.6dBi, which is 2dBi higher than the 2.4&5G dual-band antenna gain. Figure 14 The isolation between a horizontally polarized 2.4G single-band antenna and three 5G single-band vertically polarized antennas is shown. Figure 14 As shown, combined Figure 16 , the isolation between the horizontally polarized 2.4G single-frequency antenna 10 and the 5G single-frequency vertically polarized antenna 121 in the 5G frequency band (such as Figure 14 The S3,1 in the figure reaches 48 dB, and the isolation between the horizontally polarized 2.4G single-frequency antenna 10 and the 5G single-frequency vertically polarized antenna 122 in the 5G frequency band (e.g. Figure 14 The S4,1 in the figure reaches 52dB, and the isolation between the horizontally polarized 2.4G single-frequency antenna 10 and the 5G single-frequency vertically polarized antenna 123 in the 5G frequency band (such as Figure 14 The S5,1) in the CMOS reached 55dB. Figure 15 As shown, the isolation between the four 5G Wi-Fi vertically polarized antennas (such as Figure 15 The lowest S3,2, S4,2, S5,2, S4,3, S5,3, and S5,4) also reached 16dB, which well met the usage requirement of a minimum isolation of 15dB.

[0053] The Wi-Fi antenna assembly provided in the embodiments of the present application offers a layout solution for miniaturization, high isolation, and high gain of 5G antennas that meets the requirements of Wi-Fi high-speed MIMO transmission. While improving antenna gain, it also improves the isolation between antennas, thus meeting the trend of product miniaturization and the requirement of improving both antenna gain and antenna isolation in multi-antenna MIMO systems.

[0054] An embodiment of the present application also provides a wireless network device, which includes a housing and the Wi-Fi antenna assembly described in any of the above embodiments of the present application; wherein the Wi-Fi antenna assembly is housed in the housing. In one embodiment, the wireless network device includes a communication device with Wi-Fi, which may include but is not limited to customer premises equipment (CPE), a router, etc. The wireless network device equipped with the Wi-Fi antenna assembly described in any of the above embodiments of the present application achieves the characteristic requirement of Wi-Fi omnidirectional coverage.

[0055] In an exemplary embodiment, the wireless network device uses the horizontally polarized radiator and the first vertically polarized radiator in the Wi-Fi antenna assembly to achieve 2T2R MIMO coverage of the Wi-Fi first frequency band (such as the 2.4G band); the one first vertically polarized radiator and three second vertically polarized radiators in the Wi-Fi antenna assembly are used to achieve 4T4R MIMO coverage of the Wi-Fi second frequency band (such as the 5G band).

[0056] The CPE always stands "in front" of local user devices (such as mobile phones, tablets, and computers). It is a mobile signal access device that receives mobile signals and forwards them as wireless Wi-Fi signals. It is also a device that converts 4G or 5G signals into Wi-Fi signals for use by user devices. The Wi-Fi antenna assembly provided in the embodiments of the present application is used to receive wireless Wi-Fi signals converted from mobile signals and transmit them to local user devices, as well as receive wireless Wi-Fi signals from local user devices and transmit them to relevant modules within the CPE to convert the wireless Wi-Fi signals from the local user devices into mobile signals and transmit them from the CPE.

[0057] The present application also provides a CPE. Figure 16 , which at least includes:

[0058] The horizontally polarized radiator 10 has a first radiating surface and is used to radiate Wi-Fi signals in a first frequency band;

[0059] At least two vertically polarized radiators 11 are circumferentially spaced apart around the horizontally polarized radiator, each having a second radiating surface. The at least two vertically polarized radiators 11 include a first vertically polarized radiator for radiating Wi-Fi first-band signals and Wi-Fi second-band signals, and a second vertically polarized radiator for radiating the Wi-Fi second-band signals. In one embodiment, there is only one first vertically polarized radiator, and the remaining at least one second vertically polarized radiator.

[0060] The support member 12 includes a support top wall and a plurality of support side walls; a horizontally polarized radiator is disposed on the support top wall, and a vertically polarized radiator is disposed on each support side wall;

[0061] The CPE can be set on a horizontal support surface so that the first radiating surface is set parallel to the horizontal support surface, and the second radiating surface is set perpendicular to the horizontal support surface, wherein the horizontally polarized radiator and the first vertically polarized radiator are used to horizontally omnidirectionally radiate Wi-Fi first frequency band signals, and the first vertically polarized radiator and the second vertically polarized radiator are used to horizontally omnidirectionally radiate Wi-Fi second frequency band signals.

[0062] In an exemplary embodiment, the Wi-Fi first frequency band signal may be, for example, a Wi-Fi 2.4G signal, and the Wi-Fi second frequency band signal may be, for example, a Wi-Fi 5G signal.

[0063] Figure 16 Schematic diagram of the positional relationship between the Wi-Fi antenna assembly and the CPE in the embodiment of the present application. Figure 16 As shown, the Wi-Fi antenna assembly of the present application includes a horizontally polarized radiator 10 and four vertically polarized radiators 11 as an example, wherein a horizontally polarized radiator 10 is Figure 2 The 2.4G single-frequency horizontally polarized omnidirectional antenna shown in FIG. Figure 16 The first vertically polarized radiator 111) is Figure 5 The 2.4G&5G dual-band vertically polarized antenna shown in FIG. Figure 16 The second vertically polarized radiator 121, the second vertically polarized radiator 122, and the second vertically polarized radiator 123 are Figure 9The 5G single-band vertically polarized antenna shown. The five Wi-Fi antennas are placed above the CPE device PCB. The support member 12 includes a support top wall and multiple support side walls. The horizontally polarized radiator 10 is arranged on the support top wall, and each support side wall is provided with a vertically polarized radiator 11. The CPE can be set on a horizontal support surface. The first radiating surface of the horizontally polarized radiator 10 is arranged parallel to the horizontal support surface, and the second radiating surface of each vertically polarized radiator 11 is arranged perpendicular to the horizontal support surface. The horizontally polarized radiator 10 and the first vertically polarized radiator 111 are used to horizontally omnidirectionally radiate Wi-Fi first-band signals, while the first vertically polarized radiator 11 and the second vertically polarized radiator 121, the second vertically polarized radiator 122, and the second vertically polarized radiator 123 are used to horizontally omnidirectionally radiate Wi-Fi second-band signals. It should be noted that there is no strict limitation on verticality or parallelism in the embodiments of the present application, and engineering errors should be taken into account. For example, if the angle between two planes is 85 to 90 degrees, the two planes can be considered vertical; if the angle between two planes is 0 to 5 degrees, they can be considered parallel to each other.

[0064] In one exemplary embodiment, multiple vertically polarized radiators 11 are arranged at equal intervals around the circumference of the horizontally polarized radiator 10. In one embodiment, to better ensure signal radiation, the angle between the second radiating surfaces of any two adjacent vertically polarized radiators 11 is equal. For example, if there are four vertically polarized radiators 11, the angle between the second radiating surfaces of any two adjacent vertically polarized radiators 11 is 90 degrees. For another example, if there are five vertically polarized radiators 11, the angle between the second radiating surfaces of any two adjacent vertically polarized radiators 11 is 72 degrees.

[0065] Through the Wi-Fi antenna assembly provided in the embodiment of the present application, five Wi-Fi antennas are arranged on the top of the CPE. Through the horizontally polarized radiator 10, such as a 2.4G single-band horizontally polarized omnidirectional antenna, and the first vertically polarized radiator 111, such as a 2.4G & 5G dual-band vertically polarized antenna, the CPE achieves 2T2R MIMO coverage of Wi-Fi 2.4G. Through the first vertically polarized radiator 111, such as a 2.4G & 5G dual-band vertically polarized antenna, and the second vertically polarized radiators 121, 122, and 123, such as a 5G single-band vertically polarized antenna, the CPE achieves 4T4R MIMO coverage of Wi-Fi 5G. Moreover, through the arrangement of the Wi-Fi antenna assembly provided in the embodiment of the present application and the polarization design of the different antennas therein, an antenna layout with high isolation and miniaturization in the Wi-Fi 2.4G frequency band and high gain in the Wi-Fi 5G frequency band is achieved, providing a feasible solution for CPE miniaturization.

[0066] In an exemplary embodiment, the CPE may further include a housing and a circuit board, wherein the horizontally polarized radiator 10, the vertically polarized radiator 11 and the support 12 are disposed in the housing, and the circuit board is electrically connected to the horizontally polarized radiator and the vertically polarized radiator respectively.

[0067] In an illustrative example, Figure 2 、 Figure 16 As shown, the horizontally polarized radiator 10 can be disposed on the first substrate 100, and a ring structure is formed by multiple dipole arms to achieve horizontal omnidirectional coverage. In one embodiment, the multiple dipole arms are four dipole arms, and the four dipole arms are arranged around the first substrate 100.

[0068] In an illustrative example, Figure 5 、 Figure 16 As shown, at least two vertically polarized radiators 11 are respectively arranged on different second substrates 200, that is, the first vertically polarized radiator 111 is arranged on one second substrate 200, the second vertically polarized radiator 121 is arranged on another second substrate 200, the second vertically polarized radiator 122 is arranged on another second substrate 200, and the second vertically polarized radiator 123 is arranged on yet another second substrate 200.

[0069] In one exemplary embodiment, the first vertically polarized radiator includes a first Wi-Fi radiator 202 for radiating Wi-Fi signals in a first frequency band, and a second Wi-Fi radiator 203 for radiating Wi-Fi signals in a second frequency band. In one embodiment, first Wi-Fi radiator 202 and second Wi-Fi radiator 203 are rotationally symmetrically arranged, and both are dipole antennas to achieve horizontal omnidirectional coverage.

[0070] In an exemplary embodiment, the second vertically polarized radiator 11 adopts a multi-element array, and the elements in the multi-element array are connected through phase shifters, wherein the phase shifters are used to control the phase of the element current to achieve phase superposition. Figure 11 As shown, the multi-element array is a binary array, which includes a first array element 302 and a second array element 303. The first array element 302 and the second array element 303 are connected in series via a phase shifter 304. In this way, the phase shifter 304 can control the phase superposition of the array element currents to achieve high gain.

[0071] For the CPE with the Wi-Fi antenna assembly provided by the embodiment of the present application, experiments have shown that, on the one hand, in a small space such as 82mm, the antenna isolation of the Wi-Fi 2.4G band reaches 35dB, greatly reducing the interference between antennas; on the other hand, the antenna gain of the Wi-Fi 5G band reaches 5.6dBi while meeting the isolation requirements, improving the wireless signal coverage of the CPE; on the other hand, the antennas of the Wi-Fi 2.4G band and the Wi-Fi 5G band are both horizontal omnidirectional radiation, and the energy is concentrated in the horizontal plane, which well achieves the MIMO coverage effect. In other words, through the arrangement of the Wi-Fi antenna assembly provided by the embodiment of the present application and the polarization design of different antennas therein, an antenna layout with high isolation and miniaturization in the Wi-Fi 2.4G band and high gain in the Wi-Fi 5G band is achieved, providing a feasible solution for the miniaturization of CPE.

[0072] Although the embodiments disclosed in this application are as described above, the contents described are merely embodiments adopted to facilitate understanding of this application and are not intended to limit this application. Any person skilled in the art to which this application belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application. However, the scope of patent protection of this application shall still be based on the scope defined by the attached claims.

Claims

1. A Wi-Fi antenna assembly, characterized in that: It comprises a horizontally polarized radiator and at least two vertically polarized radiators; the horizontally polarized radiator is located above the at least two vertically polarized radiators, and the radiating surface of the horizontally polarized radiator is arranged perpendicularly to the radiating surface of the vertically polarized radiator; The horizontally polarized radiator is used to radiate Wi-Fi first frequency band signals; the at least two vertically polarized radiators include a first vertically polarized radiator for radiating Wi-Fi first frequency band signals and Wi-Fi second frequency band signals, and a second vertically polarized radiator for radiating Wi-Fi second frequency band signals; The second vertically polarized radiator adopts a multi-element array, and the array elements in the multi-element array are connected through a phase shifter; the phase shifter is used to control the phase of the array element current to achieve phase superposition.

2. The Wi-Fi antenna assembly according to claim 1, wherein: The horizontally polarized radiator forms a ring structure through multiple dipole arms to achieve horizontal omnidirectional coverage.

3. The Wi-Fi antenna assembly according to claim 2, wherein: The horizontally polarized radiator is provided with one; the multi-diopter arm is 4-diopter arms; The horizontally polarized radiator is in the shape of a swastika as a whole, and includes four transmission lines and four antenna arms extending outward from a feeding point; wherein the four transmission lines form a microstrip two-wire feeding network in the shape of a cross as a whole, and the transmission lines are connected in parallel through the feeding point; the four antenna arms are arranged clockwise or counterclockwise at the end of each transmission line.

4. The Wi-Fi antenna assembly according to claim 1, wherein: The first vertically polarized radiator comprises: A first Wi-Fi radiator, configured to radiate the Wi-Fi first frequency band signal; A second Wi-Fi radiator, used to radiate the Wi-Fi second frequency band signal; The first Wi-Fi radiator and the second Wi-Fi radiator are rotationally symmetrically arranged, and both the first Wi-Fi radiator and the second Wi-Fi radiator are dipole antennas to achieve horizontal omnidirectional coverage.

5. The Wi-Fi antenna assembly according to claim 1, wherein: The multi-element array is a binary array; the binary array comprises a first array element and a second array element; The first array element and the second array element are connected in series via the phase shifter.

6. The Wi-Fi antenna assembly according to any one of claims 1 to 5, wherein: The Wi-Fi first frequency band signal is a Wi-Fi 2.4G signal; the Wi-Fi second frequency band signal is a Wi-Fi 5G signal.

7. A wireless network device, characterized in that: The invention comprises a housing and a Wi-Fi antenna assembly as claimed in any one of claims 1 to 6, wherein the Wi-Fi antenna assembly is accommodated in the housing.

8. A customer front-end device, characterized in that: include: A horizontally polarized radiator having a first radiating surface and configured to radiate a Wi-Fi first frequency band signal; At least two vertically polarized radiators, the at least two vertically polarized radiators are arranged circumferentially around the horizontally polarized radiator and spaced apart, each having a second radiating surface, and the at least two vertically polarized radiators include a first vertically polarized radiator for radiating Wi-Fi first frequency band signals and Wi-Fi second frequency band signals, and a second vertically polarized radiator for radiating the Wi-Fi second frequency band signals; as well as A support member, comprising a support top wall and a plurality of support side walls, wherein the horizontally polarized radiator is arranged on the support top wall, and each of the support side walls is provided with one vertically polarized radiator; The client front-end device can be set on a horizontal support surface so that the first radiating surface is set parallel to the horizontal support surface, and the second radiating surface is set perpendicular to the horizontal support surface, wherein the horizontally polarized radiator and the first vertically polarized radiator are used to horizontally omnidirectionally radiate the Wi-Fi first frequency band signal, and the first vertically polarized radiator and the second vertically polarized radiator are used to horizontally omnidirectionally radiate the Wi-Fi second frequency band signal; The second vertically polarized radiator adopts a multi-element array, and the array elements in the multi-element array are connected through a phase shifter; the phase shifter is used to control the phase of the array element current to achieve phase superposition.

9. The customer premise equipment according to claim 8, wherein: The customer front-end device also includes a shell and a circuit board; the horizontally polarized radiator, the vertically polarized radiator and the support are arranged in the shell, and the circuit board is electrically connected to the horizontally polarized radiator and the vertically polarized radiator respectively.

10. The customer premise equipment according to claim 8, wherein: There is one horizontally polarized radiator, there is one first vertically polarized radiator, and there are three second vertically polarized radiators; The horizontally polarized radiator and the first vertically polarized radiator are used to implement the multiple-input multiple-output MIMO coverage of two-transmit and two-receive 2T2R in the first frequency band of the Wi-Fi; The first vertically polarized radiator and the second vertically polarized radiator are used to achieve MIMO coverage of four-transmit and four-receive 4T4R in the second frequency band of the Wi-Fi.

11. The customer premises equipment according to any one of claims 8 to 10, wherein: The horizontally polarized radiator is arranged on the first substrate and forms a ring structure through multiple dipole arms to achieve horizontal omnidirectional coverage.

12. The customer premises equipment according to claim 11, wherein: The multiple vibrator arms are four vibrator arms; the four vibrator arms are arranged on the first substrate in a surrounding manner; The horizontally polarized radiator is in the shape of a swastika as a whole, and includes four transmission lines and four antenna arms extending outward from a feeding point; wherein the four transmission lines form a microstrip two-wire feeding network in the shape of a cross as a whole, and the transmission lines are connected in parallel through the feeding point; the four antenna arms are arranged clockwise or counterclockwise at the end of each transmission line.

13. The customer premises equipment according to any one of claims 8 to 10, wherein: At least two of the vertically polarized radiators are respectively arranged on different second substrates; The first vertically polarized radiator includes: a first Wi-Fi radiator, used to radiate the Wi-Fi first frequency band signal; a second Wi-Fi radiator, used to radiate the Wi-Fi second frequency band signal; The first Wi-Fi radiator and the second Wi-Fi radiator are rotationally symmetrically arranged, and both the first Wi-Fi radiator and the second Wi-Fi radiator are dipole antennas to achieve horizontal omnidirectional coverage.

14. The customer premises equipment according to claim 8, wherein: The Wi-Fi first frequency band signal is a Wi-Fi 2.4G signal; the Wi-Fi second frequency band signal is a Wi-Fi 5G signal.

15. The customer premises equipment according to claim 8, wherein: The multi-element array is a binary array; the binary array comprises a first array element and a second array element; The first array element and the second array element are connected in series via the phase shifter.

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